WO2018195625A1 - Composition agissant comme barrière à l'humidité pour polymère thermoplastique, procédé de préparation de cette composition, procédé de préparation de substrat polymère, produit et substrat - Google Patents

Composition agissant comme barrière à l'humidité pour polymère thermoplastique, procédé de préparation de cette composition, procédé de préparation de substrat polymère, produit et substrat Download PDF

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Publication number
WO2018195625A1
WO2018195625A1 PCT/BR2018/050121 BR2018050121W WO2018195625A1 WO 2018195625 A1 WO2018195625 A1 WO 2018195625A1 BR 2018050121 W BR2018050121 W BR 2018050121W WO 2018195625 A1 WO2018195625 A1 WO 2018195625A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition according
composition
starch
thermoplastic polymer
nanoargyl
Prior art date
Application number
PCT/BR2018/050121
Other languages
English (en)
Portuguese (pt)
Inventor
Maria Izabel Magalhães Viana FITTIPALDI
Original Assignee
Fittipaldi Maria Izabel Magalhaes Viana
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from BR102017008851-0A external-priority patent/BR102017008851B1/pt
Application filed by Fittipaldi Maria Izabel Magalhaes Viana filed Critical Fittipaldi Maria Izabel Magalhaes Viana
Publication of WO2018195625A1 publication Critical patent/WO2018195625A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/04—Starch derivatives, e.g. crosslinked derivatives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
    • C09D103/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
    • C09D103/04—Starch derivatives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D131/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
    • C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C09D131/04—Homopolymers or copolymers of vinyl acetate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • the present invention generally concerns a composition which enhances the moisture barrier characteristic of thermoplastic polymers, for example for use in packaging.
  • the invention further relates to processes for preparing a polymeric composition comprising such a composition, and substrates comprising such a barrier composition.
  • Coatings and packaging containing polymers with varying capacities to prevent moisture passage are known in the industry.
  • the present invention relates to various aspects of a moisture barrier acting composition which surprisingly improves the efficiency of such a barrier when used as an additive for polymers, particularly thermoplastic polymers, compared to nonadditive polymers.
  • the invention relates, in a first aspect, to a moisture barrier acting composition for thermoplastic polymer, characterized in that it comprises:
  • thermoplastic polymer embraces thermoplastic homo or copolymers, individually or in mixtures thereof, biodegradable or not, transparent or not, for example chosen from PVC (polyvinyl chloride), PLA (polylactic acid), PVOH (polyvinyl alcohol) ), PVA (polyvinyl acetate), one or more polyamides, one or more polyolefins, particularly polyethylene and polypropylene, ethylene vinyl acetate (EVA), ethylene acrylic acid (EEA), ethylene vinyl alcohol copolymers (EVOH).
  • thermoplastic polymers are chosen from PVC, LDPE, PLA. More particularly, without imposing any limitation, homopolymer PVC is used.
  • nanoargyl refers to natural or synthetic clay, modified or formulated, with particles of nanometric dimensions, particularly having a size of less than 100 ⁇ m. nanometers, for example montmorillonite, bentonide, vermiculite, smectica, kaolinite, muscovite, kanemite, revictite, grumantite, ilerite, taneolite, halloysite, rectorite, vermiculite, hectorite, hydrotalcite, stevensite, haloicite, medmontite, diitaite, nontrita saponite, keniaita, laponite, sauconite, saponite, magadite, soboquita, svindorlita, ledikita, pyrophyllite, volkonscoita, magadite, fluoromica and mixtures thereof. Particularly, without imposing any limitation, montmorillonite or he
  • starch refers to natural starch from any source, for example native starch (corn, oats, rice, wheat, barley, rye, potato, cassava, etc.), chemically or enzymatically modified starch, or still their mixtures. Particularly, without imposing any limitation, acetylated starch is used.
  • acidulant is an aid in exfoliating nanoargyl coverslips, aiding their dispersion in polymeric matrices.
  • Any acidulants such as organic or inorganic acids compatible with the composition of the invention are suitable.
  • carboxylic acids such as citric, acetic, maleic or adipic are suitable. More particularly citric acid is used.
  • a polymeric crosslinking aid is an agent known to the person skilled in the art, that is, any agent or mixture of agents that assists cross-linking of polymers, typically providing modifications in mechanical properties, and / or also assisting in the reduction of porosity and consequent increase in the moisture barrier compared to a non additive thermoplastic polymer.
  • unsaturated crosslinking auxiliaries e.g. containing double bonds
  • cross-linked copolymers in the presence of peroxide initiators.
  • Non-exhaustive examples of such crosslinking aids are unsaturated monomers of the allylic, vinyl or acrylic type, casein derivatives, carboxylic acid anhydrides (e.g., citric, acetic, maleic or adipic), oxidized sucrose.
  • carboxylic acid anhydrides e.g., citric, acetic, maleic or adipic
  • oxidized sucrose e.g., maleic anhydride is used.
  • a free radical initiator suitable for the invention is, without excluding any others, a peroxide, chosen for example from benzoyl peroxide (BPO), 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane (DTBPH ), 2,5-dimethyl-2,5-di (tert-butylperoxy) hexine-3 (DTBHY), dicumyl peroxide (DCP), di (tert-butylperoxyisopropyl) benzene (DTBPIB.
  • BPO benzoyl peroxide
  • DTBPH 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane
  • DTBHY 2,5-dimethyl-2,5-di (tert-butylperoxy) hexine-3
  • DCP dicumyl peroxide
  • DTBPIB di (tert-butylperoxyisopropyl) benzene
  • thermoplastic polymer or multi-layer polymer substrates, optionally with other materials (paper, metal or metallised films, etc.), wherein at least one layer corresponds to the composition of the invention in question. addition to a thermoplastic polymer.
  • films, films may be cited as products embodying the invention. isolated or internal extruded to multilayer substrates, and external coatings for porous substrates.
  • each item of the composition of the invention (items 1 to 5) is mentioned in the table below, with reference to the nomenclature commonly used in general resin formulations: PCR or PHR ("parts per hundred parts resin” or “parts per hundred of resin”). Means the mass amount of additive incorporated into the compound formulation, relative to 100 mass units of resin.
  • compositions of the invention may additionally contain other conventional additives such as filler, pigments, dyes, antioxidants, light and heat stabilizers, plasticizers, surfactants, oils, compatibilizing polymers (e.g. EVA, in nanoargyl-like contents) and other ingredients. known to the person skilled in the art.
  • additives such as filler, pigments, dyes, antioxidants, light and heat stabilizers, plasticizers, surfactants, oils, compatibilizing polymers (e.g. EVA, in nanoargyl-like contents) and other ingredients. known to the person skilled in the art.
  • Another aspect of the invention is a process for preparing the composition of the invention, comprising the following steps:
  • a - disperse the nanoargyl in water (enough water to aid in the dispersion of nanoargyl and starch);
  • composition thus obtained may be immediately used for the preparation of a polymeric substrate by the addition of a polymer according to the following steps:
  • step H adding the polymer to the formulation obtained in step G, not dry, and mixing under stirring until complete dispersion;
  • process in step J above refers to the type of operation with which the polymeric substrate of the invention is to be obtained, for example extrusion, calendering, blowing, injection, etc.
  • the formulation of the invention may be stored for later use either as such or after drying. for removal of water.
  • sufficient water is used to allow dispersion of the polymer.
  • Still another aspect of the invention are polymeric substrates comprising between 2.5 and 20 w / w of the moisture barrier acting composition described above with respect to the weight of thermoplastic polymer.
  • Still another aspect of the invention are products characterized in that they comprise polymeric compositions obtained by the process described above.
  • Example 1 Preparation of a high moisture barrier polymer composition.
  • M mean; IV - range of variation; CV - coefficient of variation.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Biochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne une composition améliorant la caractéristique de barrière à l'humidité de polymères thermoplastiques, ladite composition comprenant une nanoargile, de l'amidon, un acidifiant, un adjuvant de réticulation polymère et un amorceur de radicaux libres. L'invention concerne également des procédés de préparation de cette composition polymère et des substrats comprenant cette composition agissant comme barrière.
PCT/BR2018/050121 2017-04-27 2018-04-23 Composition agissant comme barrière à l'humidité pour polymère thermoplastique, procédé de préparation de cette composition, procédé de préparation de substrat polymère, produit et substrat WO2018195625A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102017008851-0A BR102017008851B1 (pt) 2017-04-27 Composição de atuação sobre barreira à umidade para polímero termoplástico, processo de preparação de composição, processo de preparação de substrato polimérico, produto e substrato
BRBR1020170088510 2017-04-27

Publications (1)

Publication Number Publication Date
WO2018195625A1 true WO2018195625A1 (fr) 2018-11-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2018/050121 WO2018195625A1 (fr) 2017-04-27 2018-04-23 Composition agissant comme barrière à l'humidité pour polymère thermoplastique, procédé de préparation de cette composition, procédé de préparation de substrat polymère, produit et substrat

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Country Link
WO (1) WO2018195625A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6279736B1 (en) * 1995-04-19 2001-08-28 Capitol Specialty Plastics, Inc. Barrier pack having an absorbing agent applied to the interior of the pack
WO2010065750A1 (fr) * 2008-12-03 2010-06-10 Ecosynthetix Inc. Procédé de fabrication de compositions de biolatex à base de nanoparticules de biopolymère présentant des performances améliorées et compositions fondées sur celui-ci
US20110293957A1 (en) * 2008-12-30 2011-12-01 Caisa Johansson barrier material and method for making the same
WO2015157823A1 (fr) * 2014-04-16 2015-10-22 Plantic Technologies Ltd Compositions d'amidon et leur utilisation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6279736B1 (en) * 1995-04-19 2001-08-28 Capitol Specialty Plastics, Inc. Barrier pack having an absorbing agent applied to the interior of the pack
WO2010065750A1 (fr) * 2008-12-03 2010-06-10 Ecosynthetix Inc. Procédé de fabrication de compositions de biolatex à base de nanoparticules de biopolymère présentant des performances améliorées et compositions fondées sur celui-ci
US20110293957A1 (en) * 2008-12-30 2011-12-01 Caisa Johansson barrier material and method for making the same
WO2015157823A1 (fr) * 2014-04-16 2015-10-22 Plantic Technologies Ltd Compositions d'amidon et leur utilisation

Also Published As

Publication number Publication date
BR102017008851A2 (pt) 2018-11-21

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